package com.ruoyi.weixin;

import com.ruoyi.weixin.util.SignUtil;
import com.ruoyi.weixin.servise.CoreService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;


@Controller
@RequestMapping(value = "/system/weChatLogin")
public class CoreServlet{

	/**
	 * 
	 */
	private static final long serialVersionUID = -4023599543575398057L;

	/** 
     * 确认请求来自微信服务器 
     */
    @RequestMapping(value = "/check",  method = RequestMethod.GET)
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws  IOException {

		// 微信加密签名  
        String signature = request.getParameter("signature");  
        // 时间戳  
        String timestamp = request.getParameter("timestamp");  
        // 随机数  
        String nonce = request.getParameter("nonce");  
        // 随机字符串  
        String echostr = request.getParameter("echostr");  
        System.out.println("signature:"+signature+"  timestamp:"+timestamp+"  nonce:"+nonce+"  echostr:"+echostr);
  
        PrintWriter out = response.getWriter();  
        // 通过检验signature对请求进行校验，若校验成功则原样返回echostr，表示接入成功，否则接入失败  
        if (SignUtil.checkSignature(signature, timestamp, nonce)) {
            out.print(echostr);  
        }  
        out.close();  
        out = null; 
	}

	/** 
     * 处理微信服务器发来的消息 
     */
    @RequestMapping(value = "/check",  method = RequestMethod.POST)
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws IOException {
		// TODO 消息的接收、处理、响应    
		// 将请求、响应的编码均设置为UTF-8（防止中文乱码）  
        request.setCharacterEncoding("UTF-8");  
        response.setCharacterEncoding("UTF-8");  
  
        // 调用核心业务类接收消息、处理消息  
        String respMessage = CoreService.processRequest(request);
          
        // 响应消息  
        PrintWriter out = response.getWriter();  
        out.print(respMessage);  
        out.close();  
	}



}
